Vinyl vs Fiberglass Windows: What's the Difference?

Looking for new windows? If so, you're probably trying to decide which frame material is the best, right? We're here to help!

Without a doubt, vinyl and fiberglass are among the most popular materials in the window industry. This is why, in this article, we'll outline a comprehensive comparison between vinyl vs fiberglass windows to help you find the option that suits your home design, budget, climate, and personal preferences!

Key Takeaways

• Vinyl windows are more affordable but you'll probably have to replace them sooner (after 20 years). Fiberglass windows have a higher upfront cost but last longer (30-40 years) and are more energy-efficient.
• Vinyl windows are low maintenance but can warp and crack over time. Fiberglass windows are more durable and low-maintenance but require professional installation.
• Fiberglass windows are the best for homes in extreme climates due to their stability. Vinyl windows may expand or contract in fluctuating temperatures.
• Fiberglass is more eco-friendly because it's often made from recycled materials. Vinyl is less sustainable because of its plastic composition.

Fiberglass vs Vinyl Windows: Key Differences

Here's a breakdown of the key differences between vinyl and fiberglass windows, which we'll discuss in detail below:

1. Materials

Vinyl windows are made from polyvinyl chloride (PVC). They also contain additives that enhance the material's resistance to heat, cold, and moisture.

These windows became popular in the 1970s primarily thanks to their affordability and low maintenance - unlike wood, vinyl resists moisture and is not prone to rot and decay. Today, vinyl is a staple in the window industry, especially since it is a good insulator and can lead to significant energy savings.

Fiberglass windows are made from glass (which consists of raw materials like silica sand, limestone, and various additives that are melted together at high heat) embedded into resin. This unique combination yields a highly durable material. It is also energy-efficient and weather-resistant, so it can help save on energy bills.

2. Cost Comparison

Fiberglass windows generally cost more than vinyl windows. The average cost for a fiberglass window is $700. Some fiberglass windows, like casement or bay windows, can reach (and even exceed!) $4,000.

Vinyl windows, on the other hand, are cheaper. One vinyl window costs, on average, $200-$950 or more, depending on the window type and size. High-quality vinyl windows can cost more than that.

If you're looking for just one replacement window, you likely won't feel the price difference too much. However, if you want to replace, let's say, 10 windows, there will be a difference of a few thousand dollars. So, if you're on a tight budget, this can be a decisive factor.

Either way, before deciding, keep these in mind:

• Although fiberglass windows cost more, they are also more energy-efficient and durable. This translates into lower energy costs. Plus, you likely won't have to replace your windows for the next 30-40 years. Vinyl is not as strong as other window materials and may require replacement even after 15 years if you live in a region with extreme temperature fluctuations.
• More expensive windows can increase home value. So, if you plan to sell your house within the next few years, it may be worth it to invest in high-quality, energy-efficient windows.
• Check if your window upgrade project is eligible for rebate programs designed for homeowners who want to invest in energy-efficient renovations.

3. Climate Requirements and Energy Efficiency

It's extremely important to consider your local climate when choosing windows. For example, since fiberglass frames provide superior thermal performance, they are better for regions with a harsh climate. They maintain a tight seal and reduce the risk of warping and cracking. This, in turn, prevents air and water leaks.

Vinyl, on the other hand, expands and contracts with temperature changes. In areas with mild weather, this may not be a problem. But if you live somewhere with harsh winters and hot summers, vinyl is likely not the best choice unless it's reinforced with some other materials.

Here's a breakdown of what material is best for different Canadian regions:

If you want to assess the energy ratings of various windows, you can access the National Fenestration Rating Council and look for the window manufacturer of your choice. You can also check the energy ratings of Magic windows on the NFRC database.

4. Window Appearance and Design Flexibility

Vinyl windows have thicker frames, which slightly reduces the amount of glass. This may not be an issue with larger windows, which already have enough glazing area. On smaller windows, on the other hand, this disadvantage is highly noticeable. Bulky frames can affect the appearance of the entire window, as well as the ambiance in the room - after all, the window won't let in too much natural light.

Moreover, while vinyl can be customized with different colors and finishes, it typically cannot be repainted, unlike fiberglass. So, if you ever want to change something in your home design, you won't be able to paint your vinyl windows to match the new aesthetics.

Fiberglass frames, on the other hand, are slightly thinner. This allows for a larger glass area and better views. Furthermore, fiberglass offers more options in terms of customization. For instance, fiberglass frames can have a wood finish, so it's the best choice for those who want a wood window design but don't want the maintenance requirements of real wood. Fiberglass can also be repainted if needed.

5. Maintenance

Vinyl window frames are super easy to take care of. All you have to do is wipe them down with soapy water once in a while. They don't need to be repainted, and they also don't rot or rust. But over time, vinyl can fade. Plus, if the frame gets scratched or cracked, there's no easy way to fix it. Another thing to consider is that you may have to replace the caulking more often because vinyl expands and contracts.

Fiberglass window frames are also low-maintenance. They won't warp or crack as easily, and they hold up better in extreme weather. Just like vinyl, a quick wipe-down with soapy water is enough to keep them clean.

All in all, both fiberglass and vinyl are superior in terms of maintenance above other materials.

6. Installation Considerations

Vinyl windows are easier to install. Many homeowners actually install vinyl windows themselves, saving money on labor - approximately $100-$200 per window. This is why vinyl windows are often sold in home improvement stores. So, if you have some experience in this field and want to replace the windows yourself, you can go for vinyl frames.

Fiberglass windows, however, typically imply a more difficult installation process. They are heavier and more rigid, need to be perfectly fixed into the window opening, and require specialized tools. This adds to the total cost.

Whichever material you choose, remember to check the window's warranty to make sure you don't void it during installation. Besides, don't forget that improper installation can affect the window's energy efficiency and structural integrity.

7. Environmental Impact

If you prioritize eco-friendliness, go for fiberglass windows, as fiberglass is much easier to recycle than vinyl. Moreover, since fiberglass is more energy-efficient, it can lead to less energy consumption and minimize carbon footprint.

The manufacturing process for vinyl, on the other hand, which is a synthetic plastic polymer, releases harmful chemicals that have a negative impact on the environment.

8. Other Things to Consider

Here are some other aspects that may affect your choice:

• Welded corners: vinyl can have welded corners, while fiberglass can't; this affects window durability and appearance
• Effective drainage system: fiberglass windows often come without weep holes (tiny openings at the bottom of the frame that allow accumulated water to escape the window unit)

Hybrid Fusion Frame: An Alternative to Fiberglass and Vinyl

If you're looking for a revolutionary frame material for your windows or patio doors, we present our Hybrid Fusion Frame - a combination of vinyl, aluminum, and steel. Here's why our windows may be a better choice than both vinyl and fiberglass windows, depending on your preferences, budget, and climate requirements:

• Our frame material is more durable than fiberglass and vinyl. The steel-aluminum skeleton keeps the vinyl coating intact. The frame doesn't expand and contract like standard vinyl, and, at the same time, it's highly energy-efficient.
• The frames are thinner than most frames on the market, even with triple-pane glass, which typically requires thicker frames because of their heaviness.
• Our frames have welded corners, so they're more durable and aesthetically pleasing.
• Magic windows come with a 40-year warranty. This is proof of how much we trust our manufacturing process and the quality of the materials we use.
• Magic units come with our unique Parallex Hardware, which makes our windows almost maintenance-free!
• Our windows feature a highly efficient Hi-Flo Drainage System that prevents water accumulation.

If you want to learn more about Magic products, you can give us a call anytime!

Join Other Homeowners Who Are Happy with the Hybrid Fusion Frame!

Want to upgrade your windows with cutting-edge frame technology? Contact us today for a free consultation and see why so many homeowners trust Magic for our innovative window solutions!

Magic proudly serves homeowners across the GTA and not only: we install windows as far north as Parry Sound, south to Niagara Falls, west of Ottawa, and East to London!

Three easy ways to get started:

• Give us a call at (647) 931-4809.
• Request a free quote through our website.
• Email us at [email protected] to schedule a free in-home consultation. Our showroom is closed for major renovations, but our team can demonstrate Magic products with real samples from the comfort of your home.

Frequently Asked Questions

What windows are better, fiberglass or vinyl?

Both fiberglass and vinyl windows are good, so you should choose based on your needs and preferences. If you want a more budget-friendly option, go for vinyl windows, but don't forget that they are not as durable as fiberglass windows. If you are willing to invest more in your windows, go for fiberglass.

Why are fiberglass windows not popular in Canada?

Fiberglass windows are not that popular in Canada because they are more expensive and are not as readily available as other materials.

What is the downside to fiberglass windows?

Fiberglass windows are more expensive upfront and usually need to be installed by professionals. Moreover, many homeowners avoid fiberglass windows because of their limited availability.

What is the downside of vinyl windows?

Vinyl windows will expand and contract in extreme temperature fluctuations. This can affect their durability and insulation properties. Over time, they might require more maintenance, like re-caulking, and they can fade or crack.

Is fiberglass more expensive than vinyl?

Yes, fiberglass windows are generally more expensive than vinyl windows, both in terms of initial cost and installation.

Are fiberglass windows more durable than vinyl windows?

Fiberglass windows are more durable than vinyl windows because they are naturally resistant to rot and severe weather conditions. Fiberglass windows last over 30-40 years, while vinyl windows last only 20 years.

Which type of window is better for extreme climates?

Fiberglass windows or composite windows like Magic are the best because they handle temperature changes well and provide excellent insulation.